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Findings after surgery in case 4. (a–e) Spectral domain optical coherence tomography images revealed that an optic disc coloboma (c, e, arrows) became clear after epipapillary membrane removal. Macular schisis also gradually decreased and was resolved 11 months after surgery (a, b, and d). (f, g) A retinal nerve fiber layer defect (f, arrow) corresponding to the coloboma (g, arrowhead) was evident together with the disappearance of the retinal schisis 14 months after surgery.
